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gpu: nvgpu: support free space query in allocators

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Add gk20a_alloc_space() to query the amount of free memory in bytes in
gk20a_allocator.

Bug 1787771
Bug 200233138

Change-Id: Ia381cafd5d2dbf394072d07be96991974f9289ae
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/1223760
(cherry picked from commit 0c7fd96acc3e3d581bd25ccbe40b0821a310760f)
Reviewed-on: http://git-master/r/1235978
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Konsta Holtta
2016-09-20 13:30:53 +03:00
committed by mobile promotions
parent a4e4466a0c
commit 6fb5481a6b
2 changed files with 10 additions and 0 deletions
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8
drivers/gpu/nvgpu/gk20a/gk20a_allocator.c
View File

@@ -59,6 +59,14 @@ u64 gk20a_alloc_end(struct gk20a_allocator *a)
return 0;
}
u64 gk20a_alloc_space(struct gk20a_allocator *a)
{
if (a->ops->space)
return a->ops->space(a);
return 0;
}
u64 gk20a_alloc(struct gk20a_allocator *a, u64 len)
{
return a->ops->alloc(a, len);

2
drivers/gpu/nvgpu/gk20a/gk20a_allocator.h
View File

@@ -61,6 +61,7 @@ struct gk20a_allocator_ops {
u64 (*length)(struct gk20a_allocator *allocator);
u64 (*end)(struct gk20a_allocator *allocator);
int (*inited)(struct gk20a_allocator *allocator);
u64 (*space)(struct gk20a_allocator *allocator);
/* Destructor. */
void (*fini)(struct gk20a_allocator *allocator);
@@ -223,6 +224,7 @@ u64 gk20a_alloc_base(struct gk20a_allocator *a);
u64 gk20a_alloc_length(struct gk20a_allocator *a);
u64 gk20a_alloc_end(struct gk20a_allocator *a);
u64 gk20a_alloc_initialized(struct gk20a_allocator *a);
u64 gk20a_alloc_space(struct gk20a_allocator *a);
void gk20a_alloc_destroy(struct gk20a_allocator *allocator);